Combined nut and wrench.



A. A. FRIZ. GOMBINBD NUT AND WRENCH.

APPLICATION FILEIYJULY 26, 1909.

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AUGUST A. FRIZ, OF ST. LOUIS, MISSOURI.

COMBINED NUT AND WRENCH.

Specification of Letters Patent. I Patented N". 16, 1909- Applicationfiled July 26, 1909. Serial No. 509,672.

. 0 all whom it may concern:

Be it known that I, AUGUST A. FRIZ, a citizen of the United States, andresident of St. Louis, Missouri, have invented certain new and usefulImprovements in a Combined Nut and l/Vrench, of which the following is aspecification containing a full, clear, and exact description, referencebeing had to the accompanying drawings, forming a part hereof.

This invention relates to improvements in a combined nut and wrench, theobject of the invention being to construct a combined wrench and packingnut for stufiing boxes or the like.

For the above purposes this invention consists in certain novel featuresof construction and arrangement of parts as will be hereinafter morefully set forth, pointed out in my claims and illustrated in the accompanying drawings: in which Figure 1 is an end elevation of the nut andwrench showing the wrench in an operative position in dotted lines; Fig.2 is an elevation of the wrench and nut as applied to astufling box;Fig. 3 is a vertical sectional elevation taken on the line 33 of Fig. 2;and Fig. a is a longitudinal sectional elevation through the stuffingbox and packing nut showing the wrench in section and carried by saidnut.

Referring by numerals to the accompanying drawings: 1 designates thestufling box, 2 the packing nut and 3 the piston rod, the stuffing boxand piston rod being of ordinary construction.

In the construction shown the packing nut is formed hollow to provide achamber for the stuffing a and instead of being formed angular the nutis cylindrical and provided with an annular depression 5. The faces oneach side of the depression 5 are provided with slots 6.

A ring comprising, mating members 7 and 8, embraces the nut 2 and theannular groove and are clamped together by the plates 9, the ends ofsaid ring members and plates being provided with apertures 10, throughone of which openings a pin 11 is inserted to pivotally carry thebifurcated wrench head 12.

Teeth 13 are formed integral with the head 12 and are arranged in suchrelation to the slots 6 so as to normally permit movement of the nutrelative to the wrench.

A substantially U-shaped spring 14 is carried by the head 12 and itsfree ends arranged to slide upon the periphery of the ring members 7 and8. a

A lever 15 is secured to the head 12 by the nuts 16 on the inner end ofsaid lever and one of said nuts being arranged to secure the spring 14to the head.

In the construction shown the packing nut is formed hollow and thestuffing box arranged to act as a gland for compressing the stuffing,but it is obvious that the stuffing box may be formed hollow and thegland carried by the nut, which is a com mon construction.

This wrench is especially designed for use in connection with a packingnut through which a machine element either rotates or is movedlongitudinally through the nut.

I have especially designed my improved packing nut and wrench foremployment on the stuffing box of a steam engine, hydraulic motor or inconnection with refrigerating systems, wherein fluids under pressure mayescape through the stuffing box when the stuffing therein becomes wornand loose.

It would be obvious that by the employment of a combined wrench andpacking nut employed upon a steam engine or the like, that when thestufiing in the box becomes worn or loosened steam will escapetherefrom, and by the employment of my wrench and nut the engineer oroperator may, by simply grasping the lever of my wrench and causing theteeth to engage the packing nut, easily and quickly adjust the nut andstop the leakage of steam.

By the employment of my improved nut and wrench in connection with thestufiing box of a refrigerating system, the leakage of the chemicalsthrough a defective stuffing box will in no wise affect the easy andquick adjusting of the nut to stop such leakage.

By the employment of the ordinary nut in connection with refrigeratingsystems the leakage of chemicals through a defective stufiing box causesice or frost to collect on and cover the nut making it an operationconsuming'no little time and trouble to remove such ice or frost beforea wrench may be properly seated on the nut.

I claim:

1. The combination with a nut having an annular groove formed in itsbody portion, of a ring embracing said groove, a head pivoted to saidring teeth formed integral with said head arranged to engage the nut anda lever secured to said head.

2. In combination with a nut having an annular groove formed in its bodyportion, there being slots formed in the periphery of said nut, a ringcarried by said nut, a head pivoted to said ring, teeth on said head, aspring carried by said head adapted to engage said ring and normallyhold the teeth out of engagement with said slots, and a lever carried bysaid head.

In combination with a nut having an annular groove formed in its bodyportion, there being slots formed in the periphery of said nut, aseparable ring in said groove, extensions formed on said ring, a headpivoted to said extensions, a spring carried by said head adapted toengage said ring to nor mally hold the teeth out of engagement with theslots and a lever carried by said head. 7

i. In combination with a cylindrical nut having an annular groove formedin its periphery, there being slots formed in the periphery of said nut,a ring consisting of two mating halves fitted in said annular groove,extensions formed on said ring, plates connecting said extensions, abifurcated head pivoted to one of said extensions, a spring carried bysaid head for engagement with said ring, teeth formed integral with thehead for engagement with said slots and a lever carried by said head.

In testimony whereof, I have signed my name to this specification, inpresence of two subscribing witnesses.

AUGUST A. FRIZ.

\Vitnesses E. E. LONGAN, E. L. WALLACE.

